BGS mineralogy and petrology collection record
| Sample number | S41140; COLLNOXN1057; |
|---|---|
| Sample Donor | Wright,J. |
| Rock name | 'Original entry: Hornblende-Biotite Adamellite Or Granodiorite' |
| Stratigraphy | Not entered |
| Comments | Coarse mesotype diorite with pink feldspar. According to JGC Anderson this is a variant of his "coarse marginal type", passing into the porphyritic outer granite of Ben Nevis. It may be the relatively chilled edge of the outer granite |
| Locality details | Allt a' Mhuilinn, 1600 yds S 40 deg E of Inverlochy Castle |
| 50k map sheet | Loch Eil (62) |
| Map reference | NN 1453 7539 |
| Year collected | Not entered |
| Bore name | Not applicable |
| Confidentiality | No restrictions |
Petrological thin sections
Links to high resolution images
Transition from XPL to PPL light
S41140
